# The 25-Second Trick For Bitcoin Mining Code

Let us say you had one legit $20 and one really good photocopy of that same $20. If someone were to try to spend both the true bill and the imitation one, someone that took the trouble of looking at either of the invoices' serial numbers would observe that they were exactly the same number, and consequently one of them needed to be fictitious.

That isn't a great analogy--we will explain in more detail below. .

Once a miner has verified 1 MB (megabyte) worthiness of Bitcoin transactions, they are entitled to win the 12.5 BTC. The 1 MB limit was established by Satoshi Nakamoto, and can be a matter of controversy, as some miners believe the block size should be increased to accommodate more data.

Note that I stated that verifying 1 MB value of transactions makes a miner qualified to earn Bitcoin--not everyone who supports transactions will receive paid off.

1MB of transactions can theoretically be as small as 1 transaction (though this is not at all common) or several thousand. It depends on how much data the transactions take up.

In order to earn Bitcoin, you need to meet two conditions. One is a matter of effort, one is a matter of luck.

2) You must be the first miner to reach the perfect answer to a numeric problem. This process is also known as a proof of work.

The fantastic news: No advanced math or computation is involved. You might have discovered that miners are solving challenging mathematical problems--that is not true in any way. What they are doing is trying to be the first miner to think of a 64-digit hexadecimal number (a"hash") that is less than or equivalent to the target hash.

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The bad news: Because it is guesswork, you need a good deal of computing power in order to get there . To mine , you need to have a high"hash speed," that is measured in terms of megahashes per second (MH/s), gigahashes per second (GH/s), and terahashes per second (TH/s).

If you want to estimate just how much Bitcoin you could mine along with your mining rig's hash rate, the website Cryptocompare offers a helpful calculator.

Either check out here way a GPU (graphics processing unit) miner or an application-specific integrated circuit (ASIC) miner. These can run from $500 to the tens of thousands. Some miners--especially Ethereum miners--purchase individual graphics cards (GPUs) as a low-cost method to cobble together mining operations. The photo below is a makeshift, home-made mining machine. The graphics cards are those rectangular blocks with whirring circles. Note the sandwich twist-ties holding the pictures cards into the metal rod.

Example: I tell three friends that I'm thinking about a number between 1 and 100, and I write that number on a sheet of paper and seal it in an envelope. My friends don't have to guess the specific number, they just have to be the first person to figure any number that is less than or equal to the number I am thinking of.

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Let us say I'm thinking about the number 19. If Friend A guesses 21they lose because 21>19. If Friend B you could try this out supposes 16 and Friend C guesses 12, then they have both theoretically arrived at workable answers, because 16<19 and 12<19. There's no"extra credit" for Friend B, even though B's answer was nearer to the goal answer of 19. .

In Bitcoin terms, simultaneous answers happen frequently, but at the end of the day there can only be one winning answer. When multiple simultaneous answers are presented that are equivalent to or less than the target number, the Bitcoin network will determine by a simple majority--51%--which miner to honour. Normally, it is the miner that has done the work, i.e.

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The number above has 64 digits. Easy enough to understand up to now. As you likely noticed, that number consists not just of numbers, but also letters of this alphabet. Why is that

In order to understand what these letters are doing in the middle of numbers, let's unpack the term"hexadecimal."

As you knowwe use the"decimal" system, which means it is base 10. This in turn means that each and every digit has 10 chances, 0-9.